CVE-2024-21410 (GCVE-0-2024-21410)

Vulnerability from cvelistv5 – Published: 2024-02-13 18:02 – Updated: 2025-10-21 23:05
VLAI CISA KEVIntel
Title
Microsoft Exchange Server Elevation of Privilege Vulnerability
Summary
Microsoft Exchange Server Elevation of Privilege Vulnerability
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Date Public
2024-02-13 08:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 6d63aa09-d030-4d3c-ab77-67aa6cf4d4cc

Vulnerability ID: CVE-2024-21410

Status: Confirmed

Status Updated: 2024-02-15 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-02-15
Asserted: 2024-02-15
Scope
Notes: KEV entry: Microsoft Exchange Server Privilege Escalation Vulnerability | Affected: Microsoft / Exchange Server | Description: Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-03-07 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21410; https://nvd.nist.gov/vuln/detail/CVE-2024-21410
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-287
Feed CISA Known Exploited Vulnerabilities Catalog
Product Exchange Server
Due Date 2024-03-07
Date Added 2024-02-15
Vendorproject Microsoft
Vulnerabilityname Microsoft Exchange Server Privilege Escalation Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:24 UTC | Updated: 2026-02-06 07:53 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 143f7cf8-a4ab-4e82-a8d1-27e8d711757a

Vulnerability ID: CVE-2024-21410

Status: Confirmed

Status Updated: 2024-02-15 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-02-15
Asserted: 2024-02-15
Scope
Notes: KEVIntel entry: Microsoft Exchange Server Elevation of Privilege Vulnerability | Affected: Microsoft / Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 13, Microsoft Exchange Server 2019 Cumulative Update 14 | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Microsoft Exchange Server Elevation of Privilege Vulnerability
Vendor Microsoft
Product Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 13, Microsoft Exchange Server 2019 Cumulative Update 14
Added Date 2024-02-15T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 11:14 UTC | Updated: 2026-06-23 11:14 UTC
Show details on NVD website
To clipboard 

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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.